What is the fragment of a relation what are the main types of fragment why is fragmentation a useful concept in distributed database design?
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There are three types of data fragmentation strategies: Horizontal fragmentation refers to the division of a relation into subsets (fragments) of tuples (rows). Each fragment is stored at a different node, and each fragment has unique rows.
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Dividing the whole table data into smaller chunks and storing them in different DBs in the DDBMS is called data fragmentation. By fragmenting the relation in DB allows: ... Security : It provides security to the data. That means only valid and useful records will be available to the actual user
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